Question

How do you find the product `2y*9y^4`?

Answer 1

`18y^5`

Explanation:

Using the `color(blue)"law of exponents"`

`color(red)(bar(ul(|color(white)(2/2)color(black)(a^mxxa^n=a^((m+n)))color(white)(2/2)|)))`

`rArr2yxx9y^4`

`=2xx9xxy^1xxy^4`

`=18xxy^((1+4))`

`=18y^5`